Graphical user interface for a display screen or portion thereof



The FIGURE is a front view of a graphical user interface for a displayscreen or portion thereof showing our new design.

The OpenPeak trademark in the upper left corner of the FIGURE is theproperty of OpenPeak Inc. Trademarks are the property of theirrespective owners. The album images shown in the FIGURE are subject tocopyright protection. Copyrights are the property of their respectiveowners.

The broken line showing of the display screen or portion thereof is notpart of the claimed design.

The ornamental design for a graphical user interface for a displayscreen or a portion thereof, as shown and described.